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machenbach 0b7e35ff16 Revert of [regexp] Use consistent map checks for fast paths (patchset #7 id:120001 of https://chromiumcodereview.appspot.com/2434983002/ ) 
Reason for revert:
https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/10853

Original issue's description:
> [regexp] Use consistent map checks for fast paths
>
> These map checks were implemented for TF code already. This CL makes
> sure that parts implemented in C++ follow the same logic, which is:
>
> An object is an unmodified regexp if:
> 1) it's a receiver,
> 2) its map is the initial regexp map,
> 3) its prototype is a receiver,
> 4) and its prototype's map is the initial prototype's initial map.
>
> We can now be smarter in @@replace and @@split since checking maps
> (unlike the previous check of RegExp.prototype.exec) is not observable,
> so we can perform fast-path checks at a time of our choosing.
>
> BUG=v8:5339,v8:5434,v8:5123

TBR=yangguo@chromium.org,jgruber@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5339,v8:5434,v8:5123

Review-Url: https://chromiumcodereview.appspot.com/2438283002
Cr-Commit-Position: refs/heads/master@{#40499}
2016-10-21 11:15:20 +00:00
benchmarks Revert "Refactoring: Make gtest testsuite the default." 2014-09-02 09:17:26 +00:00
build_overrides Revert of [inspector] Turn on inspector by default (patchset #1 id:1 of https://codereview.chromium.org/2395763002/ ) 2016-10-19 08:56:37 +00:00
docs [Docs] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +00:00
gni [inspector] expose js_protocol.json file location in BUILD file 2016-10-12 14:11:21 +00:00
gypfiles [debugger] basic test infrastructure for new debugger test api. 2016-10-21 06:38:05 +00:00
include Constrain the zone segment pool size 2016-10-20 14:48:55 +00:00
infra [CQ] Temporarily reduce coverage bot's frequency 2016-10-19 12:13:40 +00:00
samples Reland of land "Turn libbase into a component" (patchset #1 id:1 of https://codereview.chromium.org/2396933002/ ) 2016-10-07 07:56:52 +00:00
src Revert of [regexp] Use consistent map checks for fast paths (patchset #7 id:120001 of https://chromiumcodereview.appspot.com/2434983002/ ) 2016-10-21 11:15:20 +00:00
test Revert of [regexp] Use consistent map checks for fast paths (patchset #7 id:120001 of https://chromiumcodereview.appspot.com/2434983002/ ) 2016-10-21 11:15:20 +00:00
testing Use GTEST_LANG_CXX11 in V8 2016-07-25 13:06:42 +00:00
third_party/binutils Update binutils version to match Chromium. 2016-07-08 07:03:29 +00:00
tools [debugger] basic test infrastructure for new debugger test api. 2016-10-21 06:38:05 +00:00
.clang-format [formatting] Remove the formatting requirement for 2 empty lines between declarations. 2016-01-25 09:50:17 +00:00
.gitignore [inspector] added closure compiler into DEPS 2016-09-23 19:05:23 +00:00
.gn Disentangle gyp and gn files 2016-09-14 19:02:41 +00:00
.ycm_extra_conf.py Use C++11 / gnu++11, not 0x 2016-03-22 15:24:43 +00:00
AUTHORS [crankshaft] Eliminate unnecessary ToNumber call 2016-10-17 09:27:39 +00:00
BUILD.gn Reland Update implementation of atomics with latest Chromium version but use compiler builtin atomics 2016-10-21 10:05:42 +00:00
ChangeLog [Release] Update ChangeLog file 2016-02-17 21:29:09 +00:00
CODE_OF_CONDUCT.md Explicitly state that the Chromium Code of Conduct also applies to V8 2016-03-02 09:51:24 +00:00
codereview.settings Use v8-reviews@ for review mail, so v8-dev@ is free for dev discussions 2015-09-09 08:14:11 +00:00
DEPS Update V8 DEPS. 2016-10-21 03:32:49 +00:00
LICENSE Updates to the license information of third party components. 2015-06-16 12:37:50 +00:00
LICENSE.fdlibm Add LICENSE.fdlibm for all the fdlibm imported sources. 2016-06-09 07:17:03 +00:00
LICENSE.strongtalk Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.v8 Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.valgrind Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
Makefile Remove NaCl support. 2016-07-27 07:50:31 +00:00
Makefile.android [build] Fix d8-for-Android builds 2016-05-20 12:10:45 +00:00
OWNERS Remove oth from OWNERS 2016-09-05 13:38:25 +00:00
PRESUBMIT.py Fix BUILD.gn files and add presubmit step 2016-09-19 10:59:41 +00:00
README.md [Docs] Removed unused docs because they are moved to GitHub 2015-11-19 10:23:30 +00:00
snapshot_toolchain.gni Use clang for snapshot_toolchain by default, except on ChromeOS. 2016-08-23 14:04:27 +00:00
WATCHLISTS [inspector] added devtools-reviews@chromium.org in WATCHLISTS for inspector 2016-09-29 15:16:54 +00:00

README.md

V8 JavaScript Engine

V8 is Google's open source JavaScript engine.

V8 implements ECMAScript as specified in ECMA-262.

V8 is written in C++ and is used in Google Chrome, the open source browser from Google.

V8 can run standalone, or can be embedded into any C++ application.

V8 Project page: https://github.com/v8/v8/wiki

Getting the Code

Checkout depot tools, and run

    fetch v8

This will checkout V8 into the directory v8 and fetch all of its dependencies. To stay up to date, run

    git pull origin
    gclient sync

For fetching all branches, add the following into your remote configuration in .git/config:

    fetch = +refs/branch-heads/*:refs/remotes/branch-heads/*
    fetch = +refs/tags/*:refs/tags/*

Contributing

Please follow the instructions mentioned on the V8 wiki.